Gas-burner.



Patented out. 2 w. E. Gls. 900

GAS` BURNER.

(Application filed Dec. 15, 1899.)

2 sheetsfsr'leei (No Model.)

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Nd. 658,893. Patented oct. 2, |900.

W. E. GIBBS.

GAS BURNER. (Application med pee. 15, lsa.)

2 Sheets-Sheet 2.

(No Model.)

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NITED STAT-Es PATENT OFFICE.

WI'L'LAM E.- GiBBs, 0E EANWooD, NEW JERSEY, AssIGNoR To ALEXANDER y C. `HUMPHREYS AND ARTHUR G.

GLASGOW, oE NEW YORK, N. Y.'

I GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 658,893, dated October 2, 1900.

Application filed December 15. 1899. Serial No. 740,376. (No model.)

T0 all whom t may concern:

Be it known that I, WILLIAM E. GIBBS, a citizen of the' United States of America, residing in Fanwood, in the county of Union, in the State of New Jersey, have inventeda certain new and useful Improvement in Gas- Burners, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My invention relates to the construction of gas-burners, especially to the type of burners which are known as incandescent burners and used, generally, in connection witha lamental mantle.

The object of my invention is to increase the heat of the flame, and consequently the amount of light, in such burners.' I have. found that the efficiency of such a burner depends partly upon the thorough mixing of the gas and air vwith which it is supplied andA partly, also, upon the temperature of the airand-gas mixture before it is l ignited. The higher the initial temperature of the gases the higher will be the temperature of the iiame, because i-n the case of a heated mixture the interior of the llame is not cooled by the injection of the incoming gases, as is the case where the mixture of gases is comparatively cool.

My invention accordingly consists in the construction and combination of the parts of a burner which permits at the same time a thorough inter'mingling of the gas and air and an energetic preheating of the mixture before it is ignited or comesin contact with the fialne, and this preheat-ing of the gases I effectby utilizing the heat which is usually lost by conduction andY radiation for heating the gases in the burner.

The nature of myimprovenients in general and various details which are also new in my burner will4 be best understood in connection with the drawings in which they are illus trated, and in which- Figure lis an elevation in longitudinal central section of my burner in what I consider its best and most effective form. Fig. 2 is an Velevation of the Bunsen tube used in connection withV the burner shown in Fig. l.. Fig. 3 is a cross-section on the line 3 3 of Fig.

l. Fig. 4 is a cross-section on the 1ine4 4 of Fig. l. Fig. 5 is a perspective View of the mixing and preheating cage shown in Fig. l. Fig. 6 is an elevation, partly in longitudinal central section, of a modified form of my burner. Fig. 7 is a sectional elevation of another modiiication of my burner, Fig. 8 being a plan view of this modication. is a sectional elevation of still another modiiication, and Fig. l0 is a plan View of the last modification.

A indicates the nipple, which is screwed onto' the gas pipe or tube and which is provided with an opening A', by which the gas is thrown into the Bunsen tube B, which is fastened to the nipple, as shown, and provided with openings B for the admission of air.

B2, Figs. 1, 2, and 7, indicates a threaded portion ofthe Bunsen tube upon which the casing D is screwed,` b5, Fig. 9, indicating a similar threaded portion situated, however, on a different portion of the tube.

Bs indicates the perforated end section of the Bunsen tube, B4 indicating the perforations. v

C is a plug fastened in and closing the upper end ofthe Bunsen tube, as shown in Figs. l and 2. Y It is provided with athread C', upon which the cage to be described screws, and formed with an upwardly-projecting conical portion C2.

CY, Fig. 7, is a plug which, like the plug C, is fastened in and closes the end of the Bunsen tube. In the ycase of the plug CY, however, itis provided with an upwardly-extending annular flange G3, slotted as indicated at C4 C4, &c.

D isa casing forming the outer portion of the burner proper and, as shown in Figs. 1, 7, and' 8, having a threaded extension D', which screws upon the threaded portion of the Bunsen tube. In the construction shown in Fig. 6 the casing (here indicated at DX) is provided with an upwardly-extending ange D3, which is threaded and screws upon the threaded portion b5 of the tube.

. E is a mixing and preheating cage which, as shown in Figs. l` and 5, is provided with a threaded opening E at its top, which screws upon the threaded portion O..of the plug C, the cage being thus supported from the Bun- Fig. 9 i

IOO

sen tube and ext-ending down int-o the casing D without coming into contact with its sides or bottom. This is a highly-important feature of construction, as it prevents loss of heat from the cage by conduction and insures that all the heat imparted to it by the flame acting upon its top will be communicated to the gases passing through and in contact with it on the inside of the burner. It is also important that the upper end of the cage should be directly exposed to the llame of the burner, and preferably the burner is constructed, as shown best in Fig. 5, of an integral piece of metal slotted vertically, so that in effect it consists of a number of parallel bars, the upper ends of which are directly exposed to the heat of the llame, the remainder of the bar lying in and extending through the casing D, affording large surface contact for the gases which issue from the Bunsen tube and necessarily pass through the slots of the cage on their way to the out let of the burner. The Bunsen tube in the construction shown in Fig. 1 is also heated at its end and, extending through the burner as it does, is robbed of its heat bythe incoming gases. It will be observed that in my preferred and also in my other constructions, as shown in the drawings, the cage and casing are relatively adjustable in a longitudinal direction. This is an important feature, as it enables me to change the shape of the llame, the result of moving the casing downward with respect to the cage being to cause the flame to flare outward, while a reverse adjustment has the effect of centering the flame into a narrow cone.

F in Fig. l indicates a bracket fastened to the lower part of the flange D of the casing D, F' indicating the arms of the bracket, on which rests the bottom of the chimney G.

H is a rod for supporting the mantle J, said rod being supported by a bracket D3 on the casing and held in place by a set-screw I.

In the construction shown in Fig. 6 the Bunsen tube is open at the end B5, the casing (here indicated at D")and the cage, (indicated at E2) extending above the open end of the Bunsen tube. In this construction thetop of the cage is made solid, as indicated at E4, and the cage is supported in position by screwing on to the upwardly-turned portion D3 of the casing, the casing in turn screwing'on to the threaded portion b5 at the end of the Bunsen tube. The relative adjustment of the cage and casing in this construction is effected by turning the cage in the casing, and the formation of the casing with an upwardly-extending flange D3 enables the cage and casing to be secured together Without bringing the cage into actual contact with the bottom of the casing.

In the construction shown in Fig. 7 the cage (here indicated at EY) is formed of a flanged ring E5, screwing upon the threaded portion B2 of the Bunsen tube below itsperforations B4, a series of rods E6 being secured to the flanged ring and extending upward to the mouth of the burner, where their ends will be exposed to the heat of the flame. In this particular construction all of the gas is not forced to pass through the bars of the cage, a portion of it passing through the slots C4 in the 'plug CY.

In the modification shown in Fig. 9 the casing (here indicated by the symbol Ex, because it is substantially the same as the casing shown in Fig. 6) screws on the end of the threaded portion b5 of the burner, the casing D screwing on the same threaded portion be low the cage.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a gas-burner, a casing forming the outer wall of the burner-chamber and a tube extending above the lower portion of said casing in combination with a mixing and preheating cage connected to said tube and situated in said casing so as to be interposed in the vpath of the gases passing through the burner and out of contact with the casing, said cage extending to the top of the burner as described and so as to be directly heated by the flame of the burner.

2. In a gas-burner, a casing forming the outer wall of the burner-chamber and a tube extending above the lower portion of said casing in combination with a mixing and preheating cage connected to said tube and formed of an integral piece of metal situated in said casing so as to be interposed in the path of the gases passing through the burner, said cage extending to the top of the burner as described and so as to be directly heated by the flame of the burner.

'3. In a gas-burner, a casing forming the outer -wall of the burner-chamber in combination with a mixing and preheating cage consisting of a series of bars separated by spaces or slots, said cage being situated in said casing so as to have its slotted side walls interposed in the path of the gases passing through `the burner, said cage extending to the top of the burner so that each bar has its upper end directly exposed to the flame of the burner.

4. In a gas-burner, a casing forming the outer wall of theburner-chamber in combination 'with a mixing and preheating cage supported from the top of the burner so as to have its top edge directly exposed to the llame said cage depending in the casing out of contact with its sides or bottom, and a Bunsen tube communicating directly with the inside of the cage and through its walls with the casing.

5. In a gas-burner, a casing forming the outer Wall of the burner-chamber in combina tion with a mixing and preheating cage having its upper edge directly exposed to the flame of the burner, said cageextending down into the casing and being supported therein out of contact with itssides or bottom,and a Bunsen IOC IIO

tube communicating directly With the inside of the cage and through the Walls of said cage with the casing.

6. In a gas-burner, a casing forming the outer wall of the burner-chamber in combination with a mixing and preheating cage formed of a vertically-slotted metal cylinder, said cylinder having the upper ends of its bars separating its slots directly exposed to the flame and being supported in the casing out of coutact With its walls and bottom, and a Bunsen tube communicating directly with the inside of the cage and through its slots with the casing.

7. In a gas-burner, a Bunsen tube in combiuation with a burnercasing supported thereon, a hollow cylindrical mixing and preheating cage situated in said casing with its upper edge directly exposed to the flame and close to though out of contact with the upper edge of the casing, and means for relatively adjustiugthe cage and casing in a longitudinal direction to vary the relative position of the top edges.

8. In a gas-burner, a Bunsen tube in oombination with a burner casing supported thereon, a mixing and preheating cage situated in said casing with its upper edge directly exposed to the liame and its lower edge out of contact with the sides and bottom of the casing, and means for relatively adjusting the cage and casing.

9. In a gas-burner, a Bunsen tube in combination with a burner casing supported thereon, a mixing and preheating cage situated in said casing and independently supported on the tube With its upper edge directly exposed to the flame, and means for relatively adjusting the cage and casing.

lO. In a gasburner,a Bunsen tube closed at its upper end and having apertures in its Wall in combination with a burner-casing supported at its bottom on a portion ot the tube beloW its apertured portion and a mixing and preheating cage supported in the casing on the top of the tube and out of contact with the casing.

l1. In a gasburner,a Bunsen tube closed at its upper end and having apertures in its Wall in combination with a burner-casing supported at its bottom on a portion of the tube below its apertured portion, said casing being longitudinally adjustable on the tube, and a mixing and preheating cage supported in the casing on the top of the tube and out of con- Witnesses:

HOWARD E. WHITE, JOHN BUCKLIN. 

